Bluetooth hand microphone H3-B

Specifications:

Bluetooth version: V 3.0 Class 2
Bluetooth protocols: HSP, HFP, A2DP, AVRCP
Microphone type: DSP noise reduction technology microphone
Intercom distance: 10m
Music playback time: approximately 11 hours
Call duration: approximately 11 hours
Charging time: about 3 hours
Standby time: approximately 300 hours
Working temperature: -15 ℃~50 ℃
Storage temperature: -25 ℃~60 ℃
Battery: Lithium ion polymer (1600mA/3.7V)
Shoulder microphone dual voice dual connection